Page 32: of Maritime Reporter Magazine (January 1971)

Three NKK Yards To Convert

Marcona Ore Carrier Into

World's Largest Slurry Ship

The world's largest slurry ship, 141,400 dead- weight tons, will be built from the hull of the San

Juan Exporter, a 106,229-dwt ore carrier, by

Nippon Kokan, Japan's only integrated shipbuild- er-steelmaker.

Announcing the historic conversion, Hiroo

Ikematsu, manager of NKK's New York ship- building department, said the vessel will be jum- boized by increasing her length 132 feet 5-3/4 inches and her depth 8 feet 2-7/16 inches. The converted Exporter is scheduled for delivery in

March 1972.

NKK will also install equipment systems which will enable the ship to load and discharge slurry iron ore. The Exporter was the world's largest ore carrier when delivered to her owner in 1967,

San Juan Carriers, Ltd., a division of Marcona

Corp., San Francisco.

Jumboizing will involve three NKK shipbuild- ing and repair facilities. The original hull will be deepened at Asano Dockyard near Tokyo. The new hull portion will be built at Tsurumi Shipyard also in the Tokyo-Yokohama district. Conversion will be completed at the company's mammoth, ultra-modern Tsu yard in central Japan.

Slurry handling equipment will be installed at

Asano. To be supplied by San Juan Carriers, equipment includes: seven pumps; two diesel en- gines for powering pumps which discharge slurry ore; 54 special Marconajet units which combine water with semi-solid slurry cargo for discharge by the pumping system; piping for slurry load and discharge, which features a remotely-con- trolled special valve system.

The world's first carrier-to-slurry-ship conver- sion was completed in March 1970 by Nippon

Kokan. The original vessel, the 48,968-dwt San

Juan Merchant, built by NKK in 1967, was re- named Marconaflo Merchant. She is engaged in transporting slurry ore from the Marcona Mines in Peru to Japan and other countries, the same route to be assigned to the new San Juan Exporter.

En jay Chemical Appoints

O.C. & K.R. Wilson, Inc.

Enjay Chemical Company has announced the recent appointment of O.C. & K.R. Wilson,

Inc., long time (Est. 1843) steamship tanker and industrial supplier, as agent for Industrial

Coatings and Marine Chemicals in the New

York Metropolitan area.

David Wilson, president of the firm, stated the complete line of Rust Ban paints and ma- rine chemicals, including degreasers, cleaners and Corexit oil dispersants, will be stocked in their warehouse at 32 North Moore Street,

New York, N.Y. 10013.

Raytheon Transfers Norwalk

And West Coast Operations

To New Plant In Manchester

Raytheon Company has commissioned its new Manchester Operation that will combine its former Marine Products Operation and

Sorensen Operation. Located in a new 150,000- square-foot building on a 60-acre site along

Interstate 93 in the southeast section of Man- chester, N.H., the new plant is a fully in- tegrated facility offering design, development, manufacturing and marketing functions for a range of electronic products.

The Manchester Operation produces marine radars, depth sounders, radio-telephones, radio direction finders, loran receivers, and auto- matic pilots; Sorensen power supplies; ultra- sonic measurement systems and impact grind- ers ; and precision electronic welders.

Key personnel formerly located at South

San Erancisco, Calif, and Norwalk, Conn, have transferred to Manchester where a cadre of production workers was trained in a leased training center during the final months of con- struction for the new plant.

Ralph M. Moschella, manager of the Man- chester Operation, said the new plant would employ approximately 450.

The company's former plants at South San

Francisco and Norwalk will be leased or sold.

Raytheon's Manchester Operation is located at 676 Island Pond Road.

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INC 34 Maritime Reporter/Engineering Hews